Solve the system of equations by using an inverse matrix. 5x + 4y = 8-4x + 2y = -22
A. (3, -4)
B. (4, -3)
C. (-3, 4)
D. (-4, 3)
Answer: B
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Find the volume generated by revolving about the x-axis the regions bounded
Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 - 5x2 - 36
A. -3, -2, 3, 2; f(x) = (x - 3)(x + 3)(x - 2)(x + 2) B. -3, 3; f(x) = (x - 3)(x + 3)(x2 + 4) C. -2, 2; f(x) = (x - 2)(x + 2)(x2 + 9) D. 3; f(x) = (x - 3)2(x2 + 4)
Solve the logarithmic equation.log (x + 4) = log (4x - 2)
A. 
B. 
C. 
D. 
Use Descartes' rule of signs to help list the possibilities for the nature of the solutions for the equation. Do not solve the equation.x5 - 11x4 + 14x3 - x2 + 6x - 1 = 0
A. 5 positive solutions B. 5 positive solutions or 3 positive and 2 negative solutions or 1 positive and 4 nonreal complex solutions C. 5 positive solutions or 3 positive and 2 nonreal complex solutions or 1 positive and 4 nonreal complex solutions D. 3 positive solutions and 2 negative solutions or 3 positive and 2 nonreal complex solutions or 1 positive and 4 nonreal complex solutions E. 2 positive solutions and 3 negative solutions or 3 negative and 2 nonreal complex solutions or 1 negative and 4 nonreal complex solutions